Vapor-stove



W H WO ODARD VA POR STOVE- Patented Feb. 4, 1896.

JfMMMA ANDREW RGRANAM. PHOTO-LITMRWASHINGTQN.

Mrs rarns \VILLIAM II. \VOODARD,

OF CLEVELAND, OHIO.

VAPO R-STOVE.

SPECIFICATION forming part of Letters Patent No. 554,207, dated February4, 1896.

Application filed March 14, 1895.

To all whom it may concern:

.Be it known that 1, WILLIAM H. Woonnnn, of Cleveland, in the county ofOuyahoga and State of Ohio, have invented a new and useful Improvementin Vapor-Stoves, of which the following is a specification.

My invention consists in an improvement in vapor-stoves, hereinafterfully described and claimed.

Figure 1 is an elevation partly in section. Fig. 2 is an elevation ofthe carburetingburner, showing a switch to control. the admission ofair; and Fig. 3 illustrates a slight modification of the oarburetingapparatus.

In vapor-stoves as now constructed gasoline is contained in an elevatedtank T, whence it flows down through a pipe A and the horizontal pipe V,up through a stand-pipe G into a retort D, upon which is placed a burnerE, and from said retort the vapor goes down through a pipe P out througha needle-valve R, this passage being controlled by two valves I II or bythe valve H alone, then through a, combining-tube or mixer, where thevapor is mixed with air, and finally burns at the burner E. Theconnection between pipes A and V is commonly made through a swivel-jointB, by which the tank T is turned down for filling, so as to prevent saidtank from being filled while the stove is burning. All the partsdescribed up to this point are old and in common use and not of myinvention, except that the lay-down tank was invented and patentedjointly by Charles F. Klein and myself.

The main objection to stoves of this class is that in order to lightthem the retort D must be heated in order to vaporize the gasolinetherein contained, and this is usually done by drawing a little liquidgasoline into a cup surrounding the needle-valve R, then lighting saidgasoline, and heating the retort by the flame thus produced, whichoperation causes considerable smoke and smell and is objectionable. Myinvention is designed to obviate this objection; and it consists broadlyin the connection with a gasoline-stove of a carburetor by which agas-flame may be obtained when the stove is cold in order to heat theretort.

Of course a carburetor may be made in a great many different ways, and Ihave illustrated one way which I deem is a good one,

Serial No. 5 ll,'72l. (No model.)

and perhaps the simplest and best one that can be devised.

J represents a hollow vessel whose bottom is connected with pipe V, andat the point of connection I prefer to place a valve K, by whichcommunication from pipe V to vessel J may be controlled.

0 represents a removable plug in the upper part of vessel J.

L represents a pipe leading from the upper part of vessel J to asecondary or Bunsen burner G, placed under the retort D and providedwith a valve S.

g represents a valve mounted to turn on the tube G and having openingsadapted to register with openings 0, whereby air may be admitted throughsaid openings or out off therefrom. The valve g is simply a piece ofsheet metal bound around the tube G and capable of turning thereon. Oneend of the valve 9 may be left projecting or a single ring may be used.

The operation of my invention is as follows: If the tank T be swung downand valve S be opened, or plug 0 be removed, valve K being open, allgasoline in pipe Vand in vessel J is drawn out and vessel J becomesfilled with air. If now valve S be closed and tank T thrown up to itsillustrated position, gasoline flows down through pipes A and V andflows through valve K into the interior of vessel J, coming in contactwith the air therein, and as gasoline is quite volatile at ordinarytemperature the air in vessel J becomes carbureted, so that when valve Sis opened and a light applied to the top of the burner-tube G agas-flame is at once obtained under the retort D, which heats saidretort to vaporize the gasoline therein contained, and the pressure ofgasoline on the under side of the air in vessel J maintains this flamefor a length of time, depending upon the size of the vessel J. As soonas retort D is sufficiently heated to vaporize the gasoline thereincontained,valvestem II of needle-valve R can be operated to open theneedle-valve, and the flame lighted at the burner E in the usual manner,and as soon as this is done valve K should be closed to prevent accessof gasoline to vessel J.

It may be often desirable to increase the carbureting power of vessel J,and this may be readily accomplished by putting in said vessel somefabric to be moistened by and retain gasoline, so that when air enterssaid vessel there will be sufficient gasoline or gasoline-vapor tocarburet it. One way to do this is to insert in said vessel J a wireframe N covered with cloth or loosely-woven asbestos, or other suitablematerial, or to partlyfill said vessel with cotton, the arrangementwhich I have shown-a cylindrical wire frame N covered with clothbein gperhaps as simple and as eflicient as any.

Of course if it is desired, gasoline may be allowed to flow through pipeL if it rises to the height of said pipe in vessel J, and it will becomevaporized in that part of said pipe which is near burner G, so that aflame may be kept at said burner continuously, and if this is done valveK must not be entirely closed; but when it is desired to use theapparatus only as a carbureting apparatus a float-valve u may be placedin vessel J, as indicated in Fig. 8, to close the end of pipe L, whichpermits air to pass when the gasoline is low in vessel J and closes theend of pipe L when the gasoline rises to the proper height.

Vhat I claim as my invention, and desire to secure by Letters Patent,is-

1. In combination with a gasoline-stove having an elevated tankconnected by means of a pipe with a retort for vaporizing gasoline, acarbureting-vessel attached to said pipe and provided with a valvecontrolling the communication between said vessel and pipe, and agas-pipe leading from the top of said carburetingwessel to avalve-controlled burner in proximity to said retort, substantially asand for the purposes set forth.

2. In combination with a gasoline-stove having an elevated tank, and apipe connecting said tank with a vaporizing-retort inter mediate betweenthe tank and the needlevalve, a carbureting-vessel having its bottomconnected with said piping and having a valve controlling thecommunication between said pipe and carbureting-vcssel, material adaptedto retain a small amount of gasoline in said carbureting-vessel when theliquid gasoline is drawn off therefrom, means for admitting air to saidcarbureting-vessel when gasoline is drawn oil therefrom, and a burner inproximity to said retort connected with said carburetingvessel,substantially as and for the purposes set forth.

3. The combination with a retort havinga burner, an d an elevatedgasoline-tank having a pipe connection with the retort, of a carburetorconnected to and communicating with the pipe connection between theelevated tank and the retort, a secondary burner arranged injuxtaposition to the retort and having a pipe connection with thecarburetor, and a float-valve arranged in the carburetor and serving tocontrol communication between the latter and the pipe connection withthe secondary burner, substantially as described.

4. The combination with a retort having a burner, and an elevatedgasoline-tank having a pipe connection with the retort, of a carburetorconnected to and communicating with the pipe connection between theelevated tank and the retort, a Bunsen burner arranged in juxtapositionto the retort, having a pipe connection with the carburetor and providedwith a valve for governing the admission of air to said Bunsen burner,and a float-valve arranged in the carburetor and serving to controlcommunication between the latter and the pipe connection with the Bunsenburner, substantially as described.

5. In a gasoline-stove the combination with an elevated gasolinesupply-tank and a supply-pipe extending vertically from said pipe andhorizontally under the burner and having therein a swivel-joint forswinging said tank downward, of a carburetor connected with thehorizontal part of the supply-pipe and having a burner in proximity to aretort on the stove, substantially as and for the purposes set forth.

WILLIAM lI. IVOODARD.

\Vitnesses HARRISON B. McGRAw, Lori. M. SNYDER.

